Windows 10: Dual boot windows 10 and 7 on seperate drives

I want to set up a dual boot system with windows 10 and 7. I have both already installed on separate drives in my desktop system and was wondering if it is still possible to set up a dual boot. Now I just switch boot priority in BIOS, but sometimes when I start up 7 it wants to perform a chkdsk. I always aboard these since it screwed up one of my drives before, with unrecoverable data as a result. How do I get it set up so I don't have those chkdsk issues anymore?

:)

 

I would like to keep Windows 7 and replace Windows 8.1 with Windows 10. Would it be possible to install 10 and keep the dual boot setup with 7?

* Original Title: Dual Boot

Hello,

My computer has Windows 7 and Windows 8.1 installed with a dual boot setup. They are both installed on the same drive(1 TB) with two equal partitions. I would like to keep Windows 7 and replace Windows 8.1 with Windows 10. Would it be possible to install
10 and keep the dual boot setup with 7?

 

How do I restore dual boot capability after Windows 10 clean install removed it

My computer was dual-boot with Windows 7 boot partitions on two separate drives. After upgrading to Windows 10, the dual boot provision worked fine. However after a clean install of Windows 10, dual-boot capability is no longer available. The boot partition
for the remaining Windows 7 syBistem is intact. Only the dual boot option is gone.

I tried the changing the default operating system under System Properties/Advanced/Startup and Recovery, but the only choice is Windows 10. Windows 7 isn't a option. I'm guessing that the clean Windows 10 install wiped out access to the dual-boot menu.

Thanks.

Bill

 

You have to turn off Windows 10 Fast Startup:
Fast Startup - Turn On or Off in Windows 10 - Windows 10 Forums

To set up dual booting, in Windows 10, assuming you can see the Windows 7 installation on the other drive, open an elevated ("run as administrator") command prompt. Type

BCDBOOT E:\Windows /addlast /d

The path in red will be to the Windows 7 Windows folder.

You can then set your menu timeout, order of the boot items, and default by holding Win key + R to open run dialog. Run MSCONFIG. Select the boot tab.

 

Thank you very much! That was an easy and fast fix, very much appreciated!